From the New York Times bestselling author of If I Stay Allyson Healey's life is exactly like her suitcase—packed, planned, ordered. Then on the last day of her three-week post-graduation European tour, she meets Willem. A free-spirited, roving actor, Willem is everything she’s not, and when he invites her to abandon her plans and come to Paris with him, Allyson says yes. This uncharacteristic decision leads to a day of risk and romance, liberation and intimacy: 24 hours that will transform Allyson’s life. A book about love, heartbreak, travel, identity, and the “accidents” of fate, Just One Day shows us how sometimes in order to get found, you first have to get lost. . . and how often the people we are seeking are much closer than we know. The first in a sweepingly romantic duet of novels. Willem’s story—Just One Year—is coming soon!